Mohsen Motahhari nezhad - Iran University of Science and Technology
Reza Tirgar - National Iranian Gas Company
saeid shahraki - Iran University of Science and Technology

A numerical simulation of cavitating flows around the NACA0012 hydrofoil is presented. A two-phase mixture model was established to study the cavitating flows. The Reynolds-Averaged Navier–Stokes equations are solved for the mixture of liquid and vapor. The calculation is performed for investigating the behaviour of the flow field when the hydrofoil angle of attack changes systematically for a constant cavitation number. The results show a slight reduction of the cavity length by increasing the angle of attack. Also, the skin friction coefficient increased by increasing the angle of attack. The results have a good agreement with experimental data and observations

Cavitating flows, K-ε turbulence model, Hydrofoil